Dip-pen nanolithography (DPN) is an atomic force microscopy-based nanolithography technique for patterning a wide range of materials at addressable locations with nanoscale precision. The compatibility of DPN with a variety of �inks� and surfaces makes it an effective tool for integrating soft and hard materials on the nanoscale. Here, we present the effects of ink properties (concentration, viscosity, hydrophilicity/hydrophobicity), patterning velocities, and surface functionalization on the direct nanoscale patterning of nanocrystals inks using DPN. Moreover, we utilize DPN in conjunction with traditional lithographic techniques to build hierarchically nano/mesostructured materials with new functionalities. By combining the imaging and writing components of DPN, we demonstrate for the first time, the ability to accurately position nanocrystals on complex, pre-fabricated, 3D sub-micron nanostructures. For this, we employ DPN to place core/shell quantum dots (down to the few-quantum dot level) on silicon nanodisk antennas to subsequently study the emission enhancement effects.

Dip-pen nanolithography for integrating nanomaterials

248th National Meeting (2014)

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